Now you will see, etc.: You have questioned My ways [of running the world, which is] unlike Abraham, to whom I said, “For in Isaac will be called your seed” (Gen. 21:12), and afterwards I said to him, “Bring him up there for a burnt offering” (Gen. 22:2), yet he did not question Me. Therefore, now you will see. What is done to Pharaoh you will see, but not what is done to the kings of the seven nations when I bring them [the children of Israel] into the land [of Israel]. — [from Sanh. 111a]

for with a mighty hand he will let them go: Because of My mighty hand, which will overpower Pharaoh, he will let them go.

כי ביד חזקה ישלחם: מפני ידי החזקה שתחזק עליו ישלחם:

and with a mighty hand he will drive them out of his land: Against Israel’s will he will drive them out, and they will not have time to make provisions for themselves, and so He says, “And the Egyptians pressed the people strongly, etc.” (Exod. 12:33).

and He said to him, I am the Lord: [Meaning: I am] faithful to recompense all those who walk before Me. I did not send you [to Pharaoh] except to fulfill My words, which I spoke to the early fathers. In this sense, we find that it אִנִי ה is interpreted in many places [in Scripture] as “I am the Lord,” [meaning that I am] faithful to exact retribution. [It has this meaning] when it is stated in conjunction with [an act warranting] punishment, e.g., “or you will profane the name of your God; I am the Lord” (Lev. 19:12). When it is stated in conjunction with the fulfillment of commandments, e.g., “And you shall keep My commandments and perform them; I am the Lord” (Lev. 22:31), [it means: I am] faithful to give reward.

with [the name] Almighty God: I made promises to them, in all of which I said to them, “I am the Almighty God.”

באל שדי: הבטחתים הבטחות ובכולן אמרתי להם אני אל שדי:

but [with] My name YHWH, I did not become known to them: It is not written here לֹא הוֹדַעְתִּי, “but My Name YHWH I did not make known to them,” but לֹא נוֹדַעְתִּי, “I did not become known.” [I.e.,] I was not recognized by them with My attribute of keeping faith, by dint of which My name is called YHWH, [which means that I am] faithful to verify My words, for I made promises to them, but I did not fulfill [them while they were alive].

to give them the land of Canaan: To Abraham in the section dealing with [the commandment of] circumcision (Gen. 17), it is said: “I am the Almighty God… And I will give you and your seed after you the land of your sojournings” (Gen. 17:1, 8). To Isaac [it is stated], “for to you and to your seed I will give all these lands, and I will establish the oath that I swore to Abraham” (Gen. 26:3), and that oath which I swore to Abraham was spoken with the [name] “Almighty God.” To Jacob [it is said], “I am the Almighty God; be fruitful and multiply, etc. And the land that, etc.” (Gen. 35:11, 12). So you see that I vowed to them [many vows], but I did not fulfill [My vows yet].

whom the Egyptians are holding in bondage. I remembered: that covenant [which I made with Abraham], for in the Covenant between the Parts, I said to him, “And also the nation that they will serve will I judge” (Gen. 15:14).

6Therefore, say to the children of Israel, 'I am the Lord, and I will take you out from under the burdens of the Egyptians, and I will save you from their labor, and I will redeem you with an outstretched arm and with great judgments.

but they did not hearken to Moses: They did not accept consolation. I.e., they despaired completely of ever being redeemed.

ולא שמעו אל משה: לא קבלו תנחומין:

because of [their] shortness of breath: Whoever is under stress, his wind and his breath are short, and he cannot take a deep breath. Similar to this [interpretation, namely that what is meant by I am the Lord is: I am faithful to fulfill My word] I heard from Rabbi Baruch the son of Rabbi Eliezer, and he brought me proof [of this explanation] from this [following] verse: “at this time I will let them know My power and My might, and they shall know that My name is the Lord” (Jer. 16:21). [Rabbi Baruch said,] We learn from this that when the Holy One, blessed be He, fulfills His words-even [when it is] for retribution-He makes it known that His name is the Lord. How much more so [does this expression apply] when he fulfills [His word] for good [because the Tetragrammaton represents the Divine Standard of Mercy]. Our Rabbis, however, interpreted it (Sanh. 111a) as related to the preceding topic, [namely] that Moses said [verse 22], “Why have You harmed…?” (Exod. 5:22). The Holy One, blessed be He, said to him, “We suffer a great loss for those [the Patriarchs] who are lost and [whose replacement] cannot be found. I must lament the death of the Patriarchs. Many times I revealed Myself to them as the Almighty God and they did not ask Me, ‘What is Your name?’ But you asked, What is His name? What shall I say to them?’” (Exod. 3:13). [4]

And also, I established, etc.: And when Abraham sought to bury Sarah, he could not find a grave until he bought [one] for a very high price. Similarly, [with] Isaac, [the Philistines] contested the wells he had dug. And so [with] Jacob, “And he bought the part of the field where he had pitched his tent” (Gen. 33:19), yet they did not question My actions! But you said, “Why have You harmed [the Israelites]?” This midrash, however, does not fit the text, for many reasons: First, because it does not say, “And My Name, ה they did not ask me.” And if you say [in response to this] that He did not let them [the Patriarchs] know that this is His name, [and nevertheless they did not ask Him, (and we will explain לֹא נוֹדַעְךְתִּי like לֹא הוֹדַעְךְתִּי, I did not make known,) I will answer you that] indeed, at the beginning, when He revealed Himself to Abraham “between the parts” (Gen. 15:10), it says: “I am the Lord (אֲנִי ה), Who brought you forth from Ur of the Chaldees” (Gen. 15:7). Moreover, how does the context continue with the matters that follow this [verse]: “And also, I heard, etc. Therefore, say to the children of Israel” ? Therefore, I say that the text should be interpreted according to its simple meaning, [with] each statement fitting its context, and the midrashic explanation may be expounded upon, as it is said: “‘Is not My word so like fire,’ says the Lord, ‘and like a hammer which shatters a rock?’” (Jer. 23:29). [The rock it strikes] is divided into many splinters.

closed lips: Heb. עִרַל שְׂפָתָיִם, Literally, of “closed” lips. Similarly, every expression of (עָרְלָה) I say, denotes a closure: e.g., “their ear is clogged (עִרֵלָה) ” (Jer. 6:10), [meaning] clogged to prevent hearing; “of uncircumcised (עַרְלֵי) hearts” (Jer. 9:25), [meaning] clogged to prevent understanding; “You too drink and become clogged up (וְהֵעָרֵל) ” (Hab. 2:16), [which means] and become clogged up from the intoxication of the cup of the curse; עָרְלַתבָּשָָׂר, the foreskin of the flesh, by which the male membrum is closed up and covered; “and you shall treat its fruit as forbidden (וְעִרַלְךְתֶּם עָרְלָתוֹ) ” (Lev. 19:23), [i. e.,] make for it a closure and a covering of prohibition, which will create a barrier that will prevent you from eating it. “For three years, it shall be closed up [forbidden] (עִרֵלִים) for you” (Lev. 19:23), [i.e.,] closed up, covered, and separated from eating it.

How then will Pharaoh hearken to me: This is one of the ten kal vachomer inferences mentioned in the Torah. — [from Gen. Rabbah 92:7] [I.e., inferences from major to minor, such as in this case. I.e., if, because of my speech impediment, the children of Israel, who have everything to gain by listening to me, did not listen to me, Pharaoh, who has everything to lose by listening to me, will surely not listen to me.]

ואיך ישמעני פרעה: זה אחד מעשרה קל וחומר שבתורה:

13So the Lord spoke to Moses and to Aaron, and He commanded them concerning the children of Israel and concerning Pharaoh, the king of Egypt, to let the children of Israel out of the land of Egypt.

So the Lord spoke to Moses and to Aaron: Because Moses had said, “I am of closed lips,” the Holy One, blessed be He, combined Aaron with him to be for him as a “mouth” [i.e., speaker] and an interpreter.

and He commanded them concerning the children of Israel: He commanded regarding them [the Israelites] to lead them gently and to be patient with them. — [from Sifrei Beha’alothecha 91]

ויצום אל בני ישראל: צום עליהם להנהיגם בנחת ולסבול אותם:

and concerning Pharaoh, the king of Egypt: He commanded them concerning him [Pharaoh], to speak to him respectfully. This is its midrashic interpretation (Mechilta, Bo, ch. 13; Exod. Rabbah 7:2). Its simple meaning is that He commanded them [Moses and Aaron] concerning Israel and concerning His mission to Pharaoh. What the content of the command was is delineated in the second section [verses 29-31], after the order of the genealogy [that follows this passage]. [This second section should be here] but since [Scripture] mentioned Moses and Aaron, it interrupts the narrative with “These are the heads of the fathers’ houses” (verse 14) to inform us how Moses and Aaron were born and after whom they traced their lineage..

These [following] are the heads of the fathers’ houses: Since [Scripture] had to trace the lineage of the tribe of Levi as far as Moses and Aaron-because of Moses and Aaron-it commenced to trace their [the Israelites’] lineage in the order of their births, starting with Reuben. (In the Great Pesikta [Rabbathi] (7:7) I saw [the following statement]: Because Jacob rebuked [the progenitors of] these three tribes at the time of his death (Gen. 49:4-7), Scripture again traces their lineage here by themselves, to infer that [even though Jacob rebuked them] they are of high esteem.)

and the years of Levi’s life: Why were Levi’s years counted? To let us know how many were the years of bondage. For as long as one of the tribes was alive, there was no bondage, as it is said: “Now Joseph died, as well as all his brothers,” and afterwards, “A new king arose” (Exod. 1:6, 8), and Levi outlived them all. — [from Seder Olam, ch. 3]

And the years of Kehath's life and the years of Amram's life etc: From this calculation we learn that the 400 year sojourn of the B'nei Yisrael which Scriptures talks about, it was not [spent] in Egypt alone but, rather [was calculated] from the day Yitzchok was born. [This can be calculated thus:] For Kehath was among those who went down to Egypt, [Now] calculate all his years and the years of Amram, [his son] and the eighty years of Moshe, you will find that they do not total 400 years, many of the [sons'] years are included in the fathers' years

25Eleazar, the son of Aaron, took himself [one] of the daughters of Putiel to himself as a wife, and she bore him Phinehas; these are the heads of the fathers' [houses] of the Levites according to their families.

[one] of the daughters of Putiel-: Of the seed of Jethro, who fattened (פִּטֵּ ם) calves for idolatry (see Rashi on Exod. 2:16) and [who was also] of the seed of Joseph, who defied and fought (פִּטְפֵּט) against his passion [when he was tempted by Potiphar’s wife]. — [from B.B. 109b]

That is Aaron and Moses: Who are mentioned above [verse 20], whom Jochebed bore to Amram, [these two] are [the same] Aaron and Moses to whom the Lord said, etc. In some places, [Scripture] places Aaron before Moses, and in other places it places Moses before Aaron, to tell us that they were equal. — [from Mechilta, 7:1]

with their legions: Heb. ע ַל-צִבְאֹתָם [equivalent to בְּ צִ בְאֹתָם], with their legions. [I.e.,] all their legions according to their tribes. There are [examples] of עַל when it is used instead of one letter, [e.g.,] “you shall live by your sword (עַל-חַרְבְּ) ” (Gen. 27:40), [which is] the same as בְּחַרְבְּ [by your own sword]; You stood by your sword (עַל-חַרְבְּכֶם) (Ezek. 33:26), [which is the same as] בְּחַרְבְּכֶם

that the Lord spoke: This is the very same speech stated above, “Come, speak to Pharaoh, the king of Egypt” (verse 11), but since [Scripture] interrupted the topic in order to trace their [Moses’ and Aaron’s] lineage, it returned to it [the statement, in order] to resume with it.

But Moses said before the Lord: This is the statement [that Moses] stated above: “Behold, the children of Israel did not hearken to me” (verse 12). Scripture repeats it here because it had interrupted the topic [for the reasons given above], and this is customary, similar to a person who says, “Let us return to the earlier [topic].”